heather flies?

heather flies?

Observation - heather flies? - UK and Ireland. Description: There have been dozens of these large flies in the garden and on local walks for the last week or so. They have red legs, the hind legs trail behind as they fly. They have quite a loud buzz if they get near your ears.

There have been dozens of these large flies in the garden and on local walks for the last week or so. They have red legs, the hind legs trail behind as they fly. They have quite a loud buzz if they get near your ears.